Cancel domain mapping and registration

Yesterday I purchased the $17 bundle to register and map a domain linked to my wordpress.com account.
I have since decided that I would like to move my site onto wordpress.org using Bluehost to host it.

My question is thus; as I am still in the 2 day cancellation period can I cancel the whole order and gain a full refund in order to re-register the domain with Bluehost?